ArticleMolecular biology of the cell2005
Synaptotagmin isoforms couple distinct ranges of Ca2+, Ba2+, and Sr2+ concentration to SNARE-mediated membrane fusion.
Article in Molecular biology of the cell, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
93 citing papers in PubMed, 145 citations in OpenAlex.
- Alternative splicing of synaptotagmin 7 regulates oligomerization and short-term synaptic plasticity.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Association learning drives synaptic plasticity at feedforward synapses in somatosensory cortex.Cerebral cortex (New York, N.Y. : 1991) · 2026Article
- IGF-like growth factors that couple food sensing to developmental decisions employ different release mechanisms in a single pair ofbioRxiv : the preprint server for biology · 2026Article
- Article
- Bidirectional causal associations between plasma metabolites and bipolar disorder.Molecular psychiatry · 2025Article
- Distribution of mRNA for the exocytotic calcium sensor, synaptotagmin 9, in mouse brain.IBRO neuroscience reports · 2025Article
- Region-Related Differences in Short-Term Synaptic Plasticity and Synaptotagmin-7 in the Male and Female Hippocampus of a Rat Model of Fragile X Syndrome.International journal of molecular sciences · 2024Article
- Different states of synaptic vesicle priming explain target cell type-dependent differences in neurotransmitter release.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Phospholipids Differentially Regulate CaACS chemical biology · 2024Article
- Complexin has a dual synaptic function as checkpoint protein in vesicle priming and as a promoter of vesicle fusion.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Synaptotagmin 7 C2 domains induce membrane curvature stress via electrostatic interactions and the wedge mechanism.bioRxiv : the preprint server for biology · 2024Article
- Synaptotagmin-7 outperforms synaptotagmin-1 to promote the formation of large, stable fusion pores via robust membrane penetration.Nature communications · 2023Article
- Simulations of active zone structure and function at mammalian NMJs predict that loss of calcium channels alone is not sufficient to replicate LEMS effects.Journal of neurophysiology · 2023Article
- Synaptotagmin-7 facilitates acetylcholine release in splanchnic nerve-chromaffin cell synapses during nerve activity.Neuroscience letters · 2023Article
- Synaptotagmin 9 Modulates Spontaneous Neurotransmitter Release in Striatal Neurons by Regulating Substance P Secretion.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
- Role of calcium-sensor proteins in cell membrane repair.Bioscience reports · 2023Review
- Expression and distribution of synaptotagmin family members in the zebrafish retina.The Journal of comparative neurology · 2022Article
- Synaptic Integration of Subquantal Neurotransmission by Colocalized G Protein-Coupled Receptors in Presynaptic Terminals.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022Article
- Synaptotagmin 1 oligomerization via the juxtamembrane linker regulates spontaneous and evoked neurotransmitter release.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Synaptotagmin-13 Is a Neuroendocrine Marker in Brain, Intestine and Pancreas.International journal of molecular sciences · 2021Article
33 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Ca2+-triggered exocytosis of synaptic vesicles is controlled by the Ca2+-binding protein synaptotagmin (syt) I. Fifteen additional isoforms of syt have been identified. Here, we compared the abilities of three syt isoforms (I, VII, and IX) to regulate soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE)-mediated membrane fusion in vitro in response to divalent cations. We found that different isoforms of syt couple distinct ranges of Ca2+, Ba2+, and Sr2+ to membrane fusion; syt VII was approximately 400-fold more sensitive to Ca2+ than was syt I. Omission of phosphatidylserine (PS) from both populations of liposomes completely abrogated the ability of all three isoforms of syt to stimulate fusion. Mutations that selectively inhibit syt.target-SNARE (t-SNARE) interactions reduced syt stimulation of fusion. Using Sr2+ and Ba2+, we found that binding of syt to PS and t-SNAREs can be dissociated from activation of fusion, uncovering posteffector-binding functions for syt. Our data demonstrate that different syt isoforms are specialized to sense different ranges of divalent cations and that PS is an essential effector of Ca2+.syt action.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.